Embedded Conductive Fiber for Pumpless Liquid–Gas Phase Transition Soft Actuation DOI Creative Commons
Hao Liu, Changchun Wu, Senyuan Lin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Soft pneumatic actuators are widely used in diverse robotic applications due to their dexterous deformation and conspicuous performance. However, the control operation of these were restricted by bulky, noisy, vibrating systems. This work introduces a pumpless actuator design based on liquid-gas phase transition, named electroconductive fiber-reinforced transition (E-FPTAs). Conductive fibers embedded into elastomer matrix as flexible heating circuits morphing programming elements. The E-FPTA generates high actuation strain 120% with low power input 12 W, showing comparable performance pump-driven actuators. By mechanically fiber patterns, motion type can be changed extending, contracting, twisting, bending, helical motion, which applied for various application scenarios. is integrated an octopus-inspired soft gripper demonstrates multimode grasping objects. A glove eight independent finger joint motions without any components also prototyped. combines large concise structures electroactive polymer actuator, provides insight actuations.

Language: Английский

Soft Fibrous Syringe Architecture for Electricity‐Free and Motorless Control of Flexible Robotic Systems DOI Creative Commons
Chi Cong Nguyen, Trung Thien Hoang, James Davies

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(39)

Published: Aug. 19, 2024

Abstract Flexible robotic systems (FRSs) and wearable user interfaces (WUIs) have been widely used in medical fields, offering lower infection risk shorter recovery, supporting amiable human–machine interactions (HMIs). Recently, soft electric, thermal, magnetic, fluidic actuators with enhanced safety compliance innovatively boosted the use of FRSs WUIs across many sectors. Among them, hydraulic offer great speed, low noise, high force density. However, they currently require bulky electric motors/pumps, pistons, valves, rigid accessories, complex controllers, which inherently result cost, adaptation, setups. This paper introduces a novel fibrous syringe architecture (SFSA) consisting two or more hydraulically connected artificial muscles that enable electricity‐free actuation, motorless control, built‐in sensing ability for WUIs. Its capabilities are experimentally demonstrated various applications including teleoperated flexible catheters, cable‐driven continuum arms, In addition, its abilities to detect passive active touch, surface texture, object stiffness also proven. These excellent results demonstrate feasibility using current‐free motor‐less control approach WUIs, enabling new methods actuation field.

Language: Английский

Citations

4
A Soft Robotic Textile‐Actuated Anthropomorphic Artificial Shoulder Mechanism DOI Creative Commons
Bibhu Sharma, James Davies,

Emanuele Nicotra

et al.

Advanced Intelligent Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Replicating the human shoulder in anthropomorphic systems is notoriously challenging due to its complex combination of mobility and strength. This study presents design, fabrication, control a new soft artificial that achieves broad range motion, torque, compliance. Powered by robotic textiles consisting network hydraulic muscles, engineered effectively mimics intricate movements, including flexion/extension, abduction/adduction, medial/lateral rotation. Experiments demonstrate can generate peak torque 9.6 ± 0.1 Nm, covering 65.3% workspace. The capability demonstrated through several experimental testbeds. First, it employed develop gesture‐controlled telemanipulation system, applicable robot‐assisted surgery, hazardous environment operations, gaming, rehabilitation. Second, serves as platform for simulating studying neurological disorders, such Parkinson's disease. approach offers reliable vitro testing ground wearable device validation, providing crucial intermediary step before progressing user studies. marks significant advancement next‐generation systems, closely mimicking musculoskeletal with promising applications assistive devices, haptics, orthopedic testing, medical technologies.

Language: Английский

Citations

0
Programmable failure in heat-sealable sheet-based fluidic devices DOI Creative Commons

Adam Broshkevitch,

Sofia Urbina, Barclay Jumet

et al.

Cell Reports Physical Science, Journal Year: 2025, Volume and Issue: unknown, P. 102437 - 102437

Published: Feb. 1, 2025

Language: Английский

Citations

0
Motor‐Free Soft Robots for Cancer Detection, Surgery, and In Situ Bioprinting DOI Creative Commons
Chi Cong Nguyen, James Davies, Aditya Ashok

et al.

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract Recent advancements in teleoperated surgical robotic systems (TSRSs) for minimally invasive surgery (MIS) have significantly improved diagnostic and outcomes. However, as the complexity of MIS procedures continues to grow, there is an increasing need enhance tools by integrating advanced functionalities into these instruments superior medical results. Despite recent advancements, TSRSs face significant challenges, including rigidity, suboptimal actuation methods, large sizes, complex control mechanisms. This paper presents a portable, motor‐free soft system equipped with arms (SRAs) that provides innovative solution performing within human organs. Unlike conventional approaches, SRAs leverage fibrous syringe architecture operation, eliminating systems. design achieves precise motion mean errors <300 µm, effectively minimizing physical tremors. Two SRAs—one one without central lumen—are developed. By microelectrodes SRAs, demonstrates capabilities support cancer detection via electrical impedance measurements perform radio‐frequency ablation treatments. Additionally, supports biomaterial injections situ 3D printing internal wound healing. simple, cost‐effective platform represents promising new direction developing MIS.

Language: Английский

Citations

0
Embedded Conductive Fiber for Pumpless Liquid–Gas Phase Transition Soft Actuation DOI Creative Commons
Hao Liu, Changchun Wu, Senyuan Lin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Soft pneumatic actuators are widely used in diverse robotic applications due to their dexterous deformation and conspicuous performance. However, the control operation of these were restricted by bulky, noisy, vibrating systems. This work introduces a pumpless actuator design based on liquid-gas phase transition, named electroconductive fiber-reinforced transition (E-FPTAs). Conductive fibers embedded into elastomer matrix as flexible heating circuits morphing programming elements. The E-FPTA generates high actuation strain 120% with low power input 12 W, showing comparable performance pump-driven actuators. By mechanically fiber patterns, motion type can be changed extending, contracting, twisting, bending, helical motion, which applied for various application scenarios. is integrated an octopus-inspired soft gripper demonstrates multimode grasping objects. A glove eight independent finger joint motions without any components also prototyped. combines large concise structures electroactive polymer actuator, provides insight actuations.

Language: Английский

Citations

0